Intersection Set difference Cartesian product QUESTION 6 The operation performs

Question

Intersection Set difference Cartesian product QUESTION 6 The operation performs a set union of two similarly structured tables O Join Product O Intersect Union QUESTION 7 The provides a set of operations that take one or more relations as input and returns a oSchematic representation e Relational algebra O Scheme diagram Relation flow QUESTION 8 A minimal set of super keys is called? o Primary o Secondary key Candidate key Foreign key QUESTIONS A table on the many side of a one to many or many to many relationship must Be in second normal form (2NGF) Have a composite key Be in third normal Form (3NF) Have a singlo attribute key QUESTION 10 Click Save and Submit to save and submit Click Save All Ansicers to sauce all anauers

Explanation / Answer

Question 6 : Answer is UNION. Union just combines all the values of relations of same attributes

Question 7 : Answer is Relational Algebra. I guessed since the question is not is displayed properly, i m assuming it that it means Relational Algebra provides a set of operations that take one or more relations as input and returns a relation as an output.

Question 8 : Answer is Candidate Key. Candidate key is the minimal key set to identify a tuple.

Question 9 : Answer is Have a composite key. The relation in second normal form is also in first normal form and no partial dependencies on any column in primary key.

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